JP3322371B2 - Thermosetting resin composite coated structure and method of construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to crack followability applied to concrete and mortar structures, metal precursors,
The present invention relates to a composite covering structure, an earthen building, and a method of constructing a composite covering structure that are excellent in waterproofness, carbon dioxide gas barrier properties, salt barrier properties, integration with a vehicle body, and water swelling resistance.

[0002]

2. Description of the Related Art It is well known that a coating film waterproofing method using a concrete structure or a metal precursor as a substrate has a high elongation rate to follow a substrate crack, and a non-adhesive type floating bonding method is preferable. However, there is a problem that the coating film rotates due to the handling of an automobile or a forklift, and wrinkles or cuts occur. In addition, as a countermeasure, a protective mortar is used, but the weight is considerably increased. Further, although a deaeration method of urethane is generally used, the coating film is soft and the coating film is damaged or wrinkled by the movement of a car. In addition, it becomes dirty due to tire slip. In order to solve these problems, it is necessary to coat the surface with a hard coating film. However, when a hard material is coated, the surface is cracked by extreme deflection due to heavy objects. Further, in the case of the floating sticking method, a material having a large linear expansion coefficient has a problem that wrinkles and swelling occur due to expansion and contraction by solar heat. On the other hand, in the case of cracking of the substrate in the close contact method, a material having a high elongation rate follows the crack, but has insufficient load resistance, and dust and dirt on the surface adhere to the surface layer. Accordingly, a hard layer having a small elongation is applied as a decorative layer on the surface layer. However, when a crack occurs, there is a problem that the force concentrates on a cracked portion and the crack is cut off. When a hard material has a strong adhesive force, it is cut off, and when the adhesive force is weak, it peels off from the substrate and causes a floating.
If the vehicle passes through the place where the floating or bulging occurs, the defective portion is further enlarged. In addition, when the substrate expands and contracts due to a temperature difference in the morning, noon, and evening, and the substrate expands, a material having high hardness and no elongation generates swelling and cracks, and is further enlarged by the movement of a heavy object such as an automobile, and becomes serious. It becomes a defect. On the other hand, as a waterproof coating film-like structure, Japanese Patent Publication No. 52-258
No. 77, an FRP (fiber reinforced plastics) structure combining a flexible unsaturated polyester resin and a fiber reinforcing material, or JP-A-58-1
As described in Japanese Patent No. 89071, a coating structure of a polyurethane foam resin is known. Also, JP-A 1-21
No. 9242 proposes a construction method in which a polyurethane resin layer and an FRP layer are combined to improve crack followability, waterproofness, carbon dioxide gas barrier properties, salt barrier properties, and the like. Separately, JP-A-60-195253 and JP-A-60-195254 have been proposed. Both use fiber-reinforced thermosetting resin in a concrete building. Recently, Japanese Patent Application Laid-Open No. Hei 3-26147 discloses the above-mentioned improvement method. On the substrate (D), a polymer composition material C layer having a tensile elongation of 30% or more (for example, a film-form resin composition material layer, a polymer composition material layer composed of a sheet, or a film-form resin composition reinforced with a reinforcing material) Material layer or one-component moisture-cured polyurethane resin layer),
Next, an adhesive B layer for a fiber-reinforced thermosetting resin (for example, a resin containing an isocyanate group or
Layer and B layer), and a fiber reinforced thermosetting resin A layer as the uppermost layer. However, in the method of bonding the fiber-reinforced thermosetting resin layer, the elongation at break of the fiber-reinforced thermosetting resin is small, and the above-described problem occurs.

[0003]

Even if a heavy object such as a person, a car or a wheelbarrow can pass through, and is lightweight, the entire elongation of the waterproof layer is 0.5 to 100% and the elongation is small. The invention aims to invent a waterproof layer that does not swell or wrinkle in appearance in response to the movement of the substrate or the expansion and contraction of the waterproof layer due to the temperature difference.

[0004]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present invention has been achieved. The present invention provides waterproofing against impact from a waterproof surface and movement of heavy objects such as vehicles. The purpose of the present invention is to prevent the layer from being damaged and to drastically improve the deaeration of moisture from the substrate surface and the followability with the substrate. thereby have the adhesive layer third-layer breathable, resulting in chain effect Kezu設
Nonwoven fabric layer with many holes Fourth layer Soft elastic waterproofing material layer excluding rubber asphalt Fifth layer Adhesive layer for thermosetting resin Sixth layer Thermosetting resin characterized by comprising fiber-reinforced thermosetting resin layer It is a composite covering structure made of. The surface layer is made of a high-strength fiber-reinforced thermosetting resin layer against the impact from the waterproof surface and the movement of heavy objects such as vehicles. Insert a breathable nonwoven layer,
Further, by laminating a soft elastic waterproofing material layer between the two, the surface layer portion and the nonwoven fabric layer have both reduced elasticity and waterproofness. Conventionally, the floating bonding method of the fiber-reinforced thermosetting resin layer of the present invention is used. It is considered that the elongation at break of the fiber-reinforced thermosetting resin is too small to be possible, and no examples were actually observed.
In addition, in order to maintain the strength of the entire composite coated structure, prevent peeling of the entire composite coated structure through the nonwoven fabric, and improve the adhesiveness, the nonwoven fabric is provided with a plurality of cutout holes that provide a number of chain effects. In order to improve the waterproof performance, a soft elastic waterproof material layer is laminated between the two, or a film layer made of a thin rubber or a thermoplastic elastomer is provided on the surface or the inner surface of the nonwoven fabric. The substrate and the nonwoven fabric layer do not adhere to each other, so that the waterproof layer is protected against expansion and contraction of the substrate, does not lead to cracks or breakage, and is a soft elastic waterproof material layer for adjusting the rigidity of the composite covering structure. to alter the performance squirrel Rukoto with foam, is visually enhance the decorative layer is laminated on the seventh-layer on top of a six-layer composite coating structure, specifically, the thermosetting resin composite coated in the structure, as well as have a first layer underlying base (substrate) 1-component moisture-cure polyurethane primer or a rubber-based primer coating a third layer breathable as a second layer adhesive in the following steps, a number of results in a chain effect
Perforated polyester fiber non-woven fabric as non-woven fabric with cut holes formed Fourth layer Two-component curable polyurethane waterproof material applied as soft elastic waterproof material layer Fifth layer Soft unsaturated polyester resin applied as adhesive layer for thermosetting resin Layer This is a construction method of a thermosetting resin composite coating structure in which a soft unsaturated polyester resin is impregnated with glass fiber upper and lower surfaces as a fiber reinforced thermosetting resin layer, and a hard unsaturated polyester resin uppermost layer is applied.

The present invention will be described with reference to the drawings. FIG. 1 is a general cross-sectional view of a conventional thermosetting resin composite coating structure. FIG. 2 is a cross-sectional view of a conventional thermosetting resin composite coating structure in which moisture has penetrated from cracks 1a of the substrate and swelling 1b has occurred. FIG. 3 is a general sectional view of the present invention. A feature of the present invention is that the nonwoven fabric 3 is used. Non-woven fabric
It contributes to protection of the waterproof layer against expansion and contraction of the base and prevention of swelling of the waterproof layer. The hardness and softness of the thermosetting resin composite coated structure of the present invention can be adjusted depending on whether the soft elastic waterproofing material layer 3 is formed of a non-foamed material or a foamed material, whereby the hardness, softness and thickness of the material are adjusted. You. Visual aesthetic appreciation can be solved by providing a decorative layer on the top layer. FIG. 4 is a cross-sectional view showing one of the effects of the present invention, namely, deaeration of moisture 13a from a crack 1a in the substrate. Deaeration of water is performed through the nonwoven fabric 3 as shown by arrows.

FIG. 5 is a general sectional view of the present invention. The substrate 1 of the present invention is composed of a single or a combination of cement concrete, asphalt concrete asbestos slate, aluminum plate, FRP, plastic, essence, metal, etc., and may have any shape. Surface, spherical surface, curved surface, extended surface, flat surface, vertical surface,
It can be used on slopes and ceilings.

A base treatment and a primer treatment are performed on the substrate as required. As the primer, a one-component moisture-curable urethane primer, a bisphenol A epoxy / polyamine primer, an unsaturated polyester primer, and a rubber adhesive can be used.

The nonwoven fabric sheet 3 is made of a commercially available synthetic fiber or natural fiber, but is provided with a plurality of cutout holes 4 to provide a chain effect.

As a two-part curable polyurethane waterproofing material to be coated on a nonwoven sheet, a crosslinking agent, a filler and the like are added to a usual two-part type main component of a polyol having a hydroxyl group and a compound having an isocyanate group.

[0010] The soft elastic waterproofing material can be used as a non-foamed body or a foamed body depending on the purpose. Base treatment and primer treatment are performed on the polyurethane resin waterproofing agent. After the primer treatment, a soft unsaturated polyester resin is applied. The reason for applying the soft unsaturated polyester resin is to impart crack followability. The glass fiber is placed on the soft unsaturated polyester resin. Glass fibers, unlike woven fabrics, facilitate the reaction of the resin applied to the upper and lower portions of the glass fibers, and the entangled volume of the glass fibers has a synergistic effect on crack followability.

A hard unsaturated polyester resin is applied on top of the glass fiber. The reason why the hard unsaturated polyester resin is applied to the upper portion is to prevent abrasion. A hard unsaturated polyester resin is used for the upper surface application.

[0012] As a method for making a better structure in the present invention is a waterproof method for a two-layer glass fiber as shown in Figure 6.
There is a method in which a soft unsaturated polyester resin 6a is applied to a lower portion and an upper portion of the glass fiber 7 of the first layer, and a hard unsaturated polyester resin 6b is applied to a lower portion and an upper portion of the glass fiber 7 of the second layer.

The coating of the present invention is carried out by brush, roller or spray coating, and the glass fiber is pressed and pressed by a roller after applying the unsaturated polyester resin.

Examples of the polyisocyanate used in the one-pack moisture-curable urethane primer used as a primer include 2.4-tolylene diisocyanate,
2.6-tolylene diisocyanate, 2.4 / 2.6 =
1. 65/35 (weight ratio) tolylene diisocyanate;
4 / 2.6 = 80/20 (weight ratio) tolylene diisocyanate, 4.4'-diphenylmethane diisocyanate, hexamethylene diisocyanate, phenylene diisocyanate, 1.5-naphthalene diisocyanate,
Examples include meta-xylylene diisocyanate, water-added tolylene diisocyanate, water-added 4.4'-diphenylmethane diisocyanate, crude tolylene diisocyanate, and polymethylene polyphenyl isocyanate. And these can be used alone or as a mixture thereof. As the polyol, any of polyols conventionally used in the production of polyurethane can be used.For example, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, glycerin, trimethylolethane, trimethylolpropane, castor oil, Glycerin, sorbitol,
Active hydrogen-containing compounds such as pentaerythritol and dipentaerythritol, and the above-described active hydrogen-containing compounds and ethylene oxide, propylene oxide, butylene oxide, styrene oxide, obtained by addition polymerization of a single or mixture of alkylene oxides such as tetrahydrofuran. Average molecular weight 3000 having two or more terminal hydroxyl groups
The average number of functional groups is 2 or more, preferably 200
An active hydrogen-containing polymer having an average functionality of from 2 to 2.5 is used. In addition, the average molecular weight of the polyester polyol, poly ε-caprolactone polyol, acrylic polyol, polyimine, polyamide, urea resin, melamine resin and the like is not more than 3000 and the average number of functional groups is 1.5 or more, preferably the average molecular weight is 200 to 1000 and the average number of functional groups is 2 Active hydrogen-containing polymers of ~ 2.5 can also be used in combination.

The two-component polyurethane resin-based waterproofing agent used in the present invention has the same isocyanate compound, but also includes those which form a prepolymer with an isocyanate compound, a polyol component and the like. The average molecular weight of the polyol component is 20
There is a wide range from 0 to 3000. 1) Prepolymer containing a terminal isocyanate free radical + polyol 2) Isocyanate compound + polyol 3) Emulsion type polyurethane resin-based waterproofing agent. Both components of these isocyanates and polyols are converted into urethane prepolymers through a well-known and conventional urethane-forming reaction in such a ratio that the molecular terminals become isocyanates. Next, the urethane prepolymer is diluted with a dilutable solvent to prepare a resin solution having a resin content of 10 to 70% by weight, preferably 15 to 50% by weight.

The unsaturated polyester resin used in the present invention is obtained by polycondensation of an α, β-unsaturated dibasic acid or an acid anhydride thereof, an aromatic saturated dibasic acid or an acid anhydride thereof, and a glycol. 30 to 80 parts by weight of an unsaturated polyester produced and, if necessary, in combination with an aliphatic or alicyclic saturated dibasic acid as an acid component, is added to α, β
And those obtained by dissolving in 70 to 20 parts by weight of unsaturated monomers. The vinyl estyl resin is obtained by modifying the terminal of the unsaturated polyester with vinyl and the terminal of the epoxy resin skeleton with vinyl. These may be added with a thickener, a filler, a curing catalyst, a curing accelerator, a low-shrinking agent, and the like, if necessary. Particularly, the addition of a curing catalyst and a curing accelerator is useful. Examples of the above α, β-unsaturated dibasic acids or acid anhydrides include maleic acid, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, chlormaleic acid and esters thereof. As the basic acid or its acid anhydride, phthalic acid, phthalic anhydride, isophthalic acid, terephthalic acid, nitrophthalic acid,
Tetrahydrophthalic anhydride, endomethylenetetrahydrophthalic anhydride, halogenated phthalic anhydride and esters thereof, and the like, and aliphatic or alicyclic saturated dibasic acids include oxalic acid, malonic acid, succinic acid, adipic acid,
There are sebacic acid, azelaic acid, glutaric acid, hexahydrophthalic anhydride and esters thereof, and these are used alone or in combination. Examples of glycols include ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, diethylene glycol, dipropylene glycol, 1.3-butanediol, 1.4-butanediol, 2-methylpropane, 1.3-diol and neopentyl. Glycol, triethylene glycol, tetraethylene glycol,
1.5-pentanediol, 1.6-hexanediol, bisphenol A, hydrogenated bisphenol A, ethylene glycol carbonate, 2.2-di- (4-hydroxypropoxydiphenyl) propane, and the like,
Although used alone or in combination, oxides such as ethylene oxide and propylene oxide can also be used. Polycondensates such as polyethylene terephthalate can also be used as part of the glycols and the acid component.
Further, as the α, β-unsaturated monomer, styrene, vinyltoluene, α-methylstyrene, chlorostyrene,
Vinyl compounds such as dichlorostyrene, vinyl naphthalene, ethyl vinyl ether, methyl vinyl ketone, methyl acrylate, ethyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile and diallyl phthalate, diallyl fumarate, diallyl succinate, triallyl cyanurate and the like Examples thereof include a vinyl monomer or a vinyl oligomer crosslinkable with an unsaturated polyester such as an allyl compound and a vinyl ester resin, and these are used alone or in combination. In general, styrene is used. The thickener is chemically bonded to a hydroxyl group, a carboxyl group, an ester bond or the like of the unsaturated polyester to form a linear or partial crosslink, thereby increasing the molecular weight and thickening the unsaturated polyester resin. Having properties, for example, diisocyanates such as toluene diisocyanate, aluminum isopropoxide, metal alkoxides such as titanium tetraptoxy,
Examples include oxides of divalent metals such as magnesium oxide, calcium oxide and beryllium oxide, and hydroxides of divalent metals such as calcium hydroxide. The amount of the thickener used is usually 0.2 to 5 parts by weight, preferably 0.5 to 4 parts by weight, based on 100 parts by weight of the unsaturated polyester resin. If necessary, a small amount of a highly polar substance such as water can be used as a thickening aid. As the colorant, any of conventionally known organic and inorganic dyes and pigments can be used. Among them, those which are excellent in heat resistance, transparency, and do not significantly hinder the curing of unsaturated polyester or the like are preferably used. Can be In the present invention, glass fiber is used as a fiber reinforcing material, but organic fibers such as amide, aramid, vinylon, polyester, and phenol, carbon fibers, metal fibers, ceramic fibers, or a combination thereof are also used. In consideration of workability and economy, glass fibers and organic fibers are preferable. The form of the fiber may be plain weave, satin weave, mat shape, or the like, and may be a mat shape from the viewpoint of workability and thickness maintenance. The mat shape is preferable from the viewpoint of workability and thickness maintenance. Further, it is also possible to cut the glass roving into 20 to 100 mm and use it as a chopped strand. As a filler,
Known materials such as calcium carbonate powder, clay, alumina powder, talc, barium sulfate, silica powder glass powder, glass beads, mica, aluminum hydroxide, cellulose thread, silica sand, river sand, cold water stone, marble waste, crushed stone and the like Among them, glass powder, aluminum hydroxide, barium sulfate and the like are preferred because they impart translucency during curing. The curing catalyst acts on an unsaturated polyester resin, a vinyl ester resin, or the like, and is, for example, an azo compound such as azoisobutyronitrile, tert-butyl perbenzoate, tertiary peroctoate, benzoyl peroxide, methyl ethyl ketone peroxide. ,
Organic peroxides such as dicumyl peroxide can be mentioned, and it can be used usually in the range of 0.3 to 3 parts by weight based on 100 parts by weight of the unsaturated polyester resin.
As the curing accelerator, metal salts of organic acids, particularly cobalt salts, for example, cobalt naphthenate, cobalt octylate,
For example, cobalt acetylacetone is used. Conventionally known ones such as alkyl phosphates can be mentioned,
For example, it can be used usually in a proportion of 0.5 to 5 parts by weight based on 100 parts by weight of the unsaturated polyester resin. As the low shrinkage agent, a thermoplastic resin can be used, and specific examples thereof include methyl methacrylate, ethyl methacrylate,
Butyl methacrylate, methyl acrylate, lower alkyl esters of acrylic acid or methacrylic acid such as ethyl acrylate, styrene, vinyl chloride, homopolymers or copolymers of monomers such as vinyl acetate, at least the vinyl monomer One and uralyl methacrylate,
Isovinyl methacrylate, acrylamide, methacrylamide, hydroxylalkyl acrylate or methacrylate, acrylonitrile, methacrylonitrile,
In addition to copolymers of at least one monomer composed of acrylic acid, methacrylic acid, and cetylstearyl methacrylate, there are cellulose acetate butyrate, cellulose acetate propionate, polyethylene, and polypropylene.

The substrate (base substrate, substrate) followability test of the present invention will be described. Preparation of test piece is 300mm × 300
A composite covering structure (thickness: 5 mm) having a thickness of 5 mm was cut into a half and abutted against each other to form a base, which was cut into a strip having a width of 25 mm as shown in FIGS. 8 and 10 to form a test piece. . Test piece 1 made by the method of the present invention shown in FIG.
1 has a shape as shown in FIG. 7 (front sectional view) and FIG. 8 (side sectional view). FIG. 9 (front sectional view) and FIG. 10 (side sectional view) show a test piece 11 made by the method of FIG. 1 as a conventional example. The substrate followability test was performed in a room of constant temperature and humidity (20 ° C x 50% R
H) Using a TCM-5 million universal tensile tester, FIG.
1. The test piece is sandwiched as shown in FIG. 12, full scale: 500 kg, crosshead speed: 1 mm / min, chart speed: 10 mm / min, distance between chucks: 165 mm.

[0018]

[Function] The structure of the composite coating structure is 1) on the base substrate (substrate) 2) Adhesion of a primer as an adhesive layer and bonding of a non-woven fabric sheet having cut holes 3) Application of a polyurethane resin-based waterproofing agent as a soft elastic waterproofing material layer 4) Unsaturated polyester resin is applied and impregnated on the inner and outer surfaces as a fiber-reinforced thermosetting resin layer, and glass fiber is placed. 5) A decorative material is applied on the upper surface to obtain a structure that can follow cracks.

As an example, the specifications are as shown in Table 1.
2 shows the results of an impact test (also wrinkles due to followability and deaeration with the substrate, wrinkles due to handling properties, dirt and floating from the substrate due to temperature changes). Primer U-007 One-component moisture-curable polyurethane primer SSN sheet manufactured by Toyo Tire & Rubber Co., Ltd. Waterproofing material of polyester fiber nonwoven fabric 161 manufactured by Toyo Tire & Rubber Co., Ltd. Two-component curable polyurethane waterproof material manufactured by Toyo Tire & Rubber Co., Ltd. U-011 Toyo Tire & Rubber Co., Ltd. One-component moisture-curable polyurethane primer Chemi roof FL-12 Toyo Tire & Rubber Co., Ltd. Soft unsaturated polyester resin mat 450 Glass fiber Chemi roof FL-45 Toyo Tire & Rubber Co., Ltd. Hard unsaturated polyester resin surface mat manufactured by Kogyo Co., Ltd. Glass fiber manufactured by Toyo Tire & Rubber Co., Ltd. Chemi roof FLT Hard unsaturated polyester resin manufactured by Toyo Tire & Rubber Co., Ltd. As a comparison Conventional example (1) Structure by adhesion method of urethane FRP Conventional example (2) Structure by urethane contact method - surface layer thermosetting resin conventional example (3) structures prior art by adhesion method of the urethane (4) floating in the PVC sheet was stuck method

[0020]

[Table 1]

The method of the impact test will be described. Equipment and materials 1) Falling steel ball Falling steel ball is JIS B 1501 (Steel ball for ball bearing)
Nominal diameter 63.5mm, mass 1 ± 0.05k
g steel balls are used. 2) Falling ball test machine A snap device for holding and dropping a steel ball is installed at the upper end of an aluminum or equivalent tube having an inner diameter of 82 mm and a length of 1000 mm, and one side supporting the tube at the lower end is 25 mm.
A structure in which a base of 0 mm is attached and the distance from the lower end of the steel ball to the surface of the test piece is set to 1 m. 3) Laying sand support base One side of the inside diameter is 50 cm and the depth is 5 c on the concrete floor surface.
Place a m sandbox formwork, spread the No. 5 silica sand and level it flat with a ruler to use as a support. Attach the steel ball to the snap hook of the falling ball tester, hold the grip of the hook and drop naturally from the specified height to the center of the test body, and observe the surface cracks and peeling. For reference, the results of a follow-up test with a substrate, degassing (appearance), handling properties, and results of floating from the substrate due to temperature changes are shown. Evaluation method 1) Impact test As described above. 2) Followability test with substrate As described above. 3) Deaeration After the concrete block of the substrate is kept in a wet state for one month, the concrete surface is sealed, the surface of the waterproof layer is heated to 80 ° C, and the swelling and appearance of the surface layer are observed. 4) Handling properties Car handling operation is performed on the waterproof layer to observe wrinkles and dirt on the waterproof layer. 5) Temperature change The waterproof layer floats after standing at an ambient temperature of 80 ° C. for 24 hours.

[0022]

[Table 2]

[0023]

【The invention's effect】

1) When a polyurethane resin is used as the soft elastic waterproofing material, it is excellent in watertightness due to the composite waterproofing of FRP. 2) Since the soft unsaturated polyester resin, the hard unsaturated polyester resin, and the non-woven fabric are selectively used, it is possible to easily follow the cracks on the base. 3) No damage from plant roots due to seamless and durable waterproof coating. 4) It is hardly decomposed by soil microorganisms and the like, and has excellent durability against chemical components of the soil solution. 5) Since the FRP is composed of the unsaturated polyester resin and the glass fiber, the load resistance is excellent. 6) Since the process is performed for each section, even if the coating film is damaged, it can be restored by removing the section. 7) Since FRP is used, it has excellent mechanical strength. 8) When a foam is used as the soft elastic waterproofing material, a desired hardness can be obtained. 9) Substrate (substrate) followability (which is a synonym for followability) is 3.5 mm better than the conventional 1.5 mm, which is twice or more as shown in FIG. 10) Since a nonwoven fabric is used, no cracking, peeling or cracking occurs. In addition, it has excellent degassing properties. 11) Wrinkles for car handling on the waterproof layer,
There is no fouling and no lifting from the substrate due to temperature changes.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a conventional composite covering structure.

FIG. 2 is a cross-sectional view showing swelling due to moisture from a crack in a substrate of a conventional composite coated structure.

FIG. 3 is a cross-sectional view of the composite covering structure of the present invention.

FIG. 4 is a cross-sectional view showing deaeration of moisture from a nonwoven fabric through a crack in a substrate of the composite coated structure of the present invention.

FIG. 5 is a cross-sectional view of another composite coating structure of the present invention.

FIG. 6 is a sectional view of another composite covering structure of the present invention.

FIG. 7 is a front sectional view of a test piece for following a substrate according to the present invention.

FIG. 8 is a side sectional view of FIG. 7;

FIG. 9 is a front sectional view of a conventional substrate follow-up test piece.

FIG. 10 is a side sectional view of FIG. 9;

FIG. 11 is a front view of a universal tensile tester and a test piece for a substrate followability test.

FIG. 12 is a side view of a universal tensile tester and a test piece for a substrate followability test.

FIG. 13 is a graph showing evaluations of a substrate followability test of the present invention and a conventional method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate (basic base) 1a Substrate crack 1b Swelling 2 Adhesive layer 2a Primer 3 Nonwoven fabric (sheet) layer 4 Cutout hole 5 Soft elastic waterproofing material layer 5a Polyurethane resin waterproofing agent 6 Thermosetting resin adhesive layer 6a Soft non-woven Saturated polyester resin 6b Hard unsaturated polyester resin 7 Glass fiber (fiber reinforced material) 9 Decorative layer (applied on top surface) 10 Fiber reinforced thermosetting resin layer 11 Specimen 11a Strip cut 12 Universal tensile tester 13 Moisture 13a Moisture deaeration 14 Multi-layer

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kiyotsuka Yatsuka 1176 Uchigaike, 6/1, Inami-cho, Kako-gun, Hyogo Toyo Tire & Rubber Co., Ltd. Hyogo Works Hyogo Plant (72) Inventor Kazushige Nishida Hyogo 1176 Uchigaike, 6/1, Inami-cho, Kako-gun, Toyo Rubber Industry Co., Ltd. Hyogo Works Hyogo Factory (56) References JP-A-3-261547 (JP, A) JP-A-4-155505 (JP, A) JP-A-58-189071 (JP, A) JP-A-1-219242 (JP, A) JP-A-5-2174791 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name ) B32B 1/00-35/00 E04D 7/00

Claims (6)

(57) [Claims] [Claim 1] as well as the structure of the composite coating structure to have a first layer substrate second layer adhesive layer third-layer breathable, resulting in chain effect Kezu設
Nonwoven fabric layer with many holes Fourth layer Soft elastic waterproofing material layer excluding rubber asphalt Fifth layer Adhesive layer for thermosetting resin Sixth layer Thermosetting resin characterized by comprising fiber-reinforced thermosetting resin layer Composite covering structure. 2. The thermosetting resin according to claim 1, wherein the nonwoven fabric of the composite coated structure is a nonwoven fabric having a film layer made of a thin rubber or a thermoplastic elastomer on its surface or inner surface. Composite coated structure. 3. The thermosetting resin composite covering structure according to claim 1, wherein said soft elastic waterproofing material layer is a foam. 4. The composite coating structure made of a thermosetting resin according to claim 1, wherein a decorative layer is laminated as a seventh layer on the sixth layer of the composite coating structure. body. 5. A composite coating structure made of a thermosetting resin, comprising the following steps: first layer, base layer (substrate), second layer, one-component moisture-curable polyurethane primer or rubber-based primer applied as an adhesive third layer, Perforated polyester fiber non-woven fabric with breathability and a large number of cut holes to provide a chain effect Fourth layer Two-component curable polyurethane waterproof material applied as soft elastic waterproof material layer Fifth layer Adhesive layer for thermosetting resin A sixth layer made of a thermosetting resin characterized by impregnating a soft unsaturated polyester resin on the lower surface of glass fiber and applying a top layer of a hard unsaturated polyester resin as the sixth layer fiber-reinforced thermosetting resin layer Construction method of composite covering structure. 6. The method according to claim 5, wherein a decorative layer is laminated as a seventh layer on the sixth layer of the composite coated structure.